Does Sterling Silver Tarnish? How to Clean It Without Damaging It

Sterling silver darkens. That is not a defect and it is not a sign of a bad piece — it is what a metal containing copper does when it meets air. Here is why it happens, and how to clean it without shortening the life of the piece.

Why sterling silver tarnishes

The silver itself does not react much with oxygen. The copper in the alloy does, and in the presence of sulphur compounds in air it forms a dark layer of silver sulphide on the surface. Humidity, wool, rubber, eggs, and some cosmetics accelerate it. A piece worn every day often tarnishes less than one left in a box, because friction keeps wiping the layer off.

Tarnish is surface chemistry. It removes nothing. Polishing it away does not thin the piece in any meaningful way, provided you polish rather than scrub.

How to clean it — in order of gentleness

1. A dry silver cloth (do this first)

An impregnated polishing cloth removes light tarnish in under a minute and is the only method you should use routinely. Wipe along the piece, not in circles. Keep a separate cloth for pieces with stones.

2. Warm water and a drop of mild soap

For grime rather than tarnish. Lukewarm water, a drop of unscented dish soap, a soft baby toothbrush for the setting, then rinse and dry completely. Water left in a stone setting is what causes Cloudy-stone complaints, not the silver.

3. Bicarbonate paste — occasionally, and carefully

Three parts bicarbonate of soda to one part water, worked into a paste, applied with a soft cloth and rinsed off. It is mildly abrasive. Do not use it on pieces with a deliberate antique or oxidised finish, and do not scrub pavé settings with it.

4. The foil-and-salt method — last resort only

A bowl lined with foil, hot water, salt and bicarbonate reverses the chemical reaction rather than abrading. It works fast and it works on chains, where a cloth is useless. It should not be used on pieces with porous stones (pearls, opal, turquoise) or with glued settings.

What not to do

• No toothpaste. It is abrasive enough to leave fine scratches that show under shop lighting.
• No undiluted bleach or silver dip used routinely. Dips work by dissolving the surface layer of metal along with the tarnish. Used once a year, acceptable. Used monthly, the piece loses definition.
• No boiling water on stones with fractures. Thermal shock can extend an existing feather in a gemstone.
• No ultrasonic cleaner for pieces with treated or fracture-filled stones.

How to slow it down

• Wear it. Pieces worn often stay brighter than pieces stored.
• Store in a closed bag or box, ideally with an anti-tarnish strip, away from rubber bands and wool.
• Put jewellery on last — after perfume, hairspray and sunscreen.
• Rinse and dry after swimming pools and sea water.

Common questions

Does tarnish mean the silver is fake?

No. It is the opposite: plating does not tarnish this way, it flakes. A piece that darkens evenly and polishes back to bright is behaving like sterling.

How often should I clean it?

A cloth when it looks dull, a soap bath every month or two for pieces worn daily, nothing more aggressive unless it is needed.

Is tarnish covered by the warranty?

Tarnish is normal and not a defect — what our warranty covers is the piece itself: the setting, the stones, the hallmark.

Care questions we have not answered here are on the FAQ page. For the metal itself, see sterling silver rings.